[LAU] Octaver or fuzztone effect

[Michal Seta]

Here's an interesting waveshaping distortion that is not linear and
gives an interesting effect.  I once ported it to pd but I did not
quite finish it (I didn't get the coefficient calculations right and
it would blow up in some unpredictible ways).

http://csounds.com/ezine/winter1999/processing/

A gentler (than abs(),[abs~] or similar) way of rectifying a signal is
multiplying it by itself.

./MiS